JACKSONVILLE – QB David Garrard was not one of six team captains as voted by the players.

Instead, the two captains selected on offense were RB Maurice Jones-Drew and TE Marcedes Lewis.

Perhaps sensing how tenuous David Garrard's hold is on the starting quarterback job, Jaguars players did not vote him as a team captain. (AP Photo)

Maybe the players sense how tenuous Garrard's hold is on the starting quarterback job.

Notes: OT Eben Britton, who is just now returning to practice on a limited basis after having a lower disk procedure in his back, hopes to get enough full-time work to regain his starting job for Sunday's season opener against the Tennessee Titans. At this point, the Jaguars may feel more comfortable going with Guy Whimper to give Britton more recovery time instead of rushing him back. Britton says the incision has healed and it's just a question of whether he can be "football ready." Britton has dealt a lot more with pain running down his right leg than in his back, which is something that bothered him last year when he missed the last nine games with a shoulder injury. "My whole right side was messed up," Britton said. "I feel like I have more power than I've had in a year. I got my legs back." The offensive line has struggled protecting the quarterback all preseason, and with Britton getting so few practice snaps, it may be more prudent to give him another week to get acclimated. ... The Jaguars' biggest free-agent acquisition, Paul Posluszny, was given $15 million guaranteed primarily to be a run-stuffing middle linebacker. His first game with his new team will provide a huge test against one of the NFL's most dynamic running backs, the Titans' Chris Johnson. "The crazy thing is you have him, you have him, and then he rips one for 70 yards and another for 30, and he's suddenly got 120 yards," said Posluszny. "We got to make sure we limit those explosive plays." Johnson ripped off 228 yards against the Jaguars in a 2009 game, including TD runs of 52 and 89 yards. Coach Jack Del Rio is convinced the Jaguars' have the best linebacker corps in his nine seasons, with free agent Clint Session and dependable veteran Daryl Smith joining Posluszny. If they have trouble containing Johnson, who just returned to practice after a contract holdout, that's not a good sign for what is supposed to a vastly improved defense. ... Backup TE Zach Miller, who is recovering from an unspecified knee injury, is back at practice, but the coaching staff is taking the same cautious approach with him as with Britton.